题目内容
13．The dictionaryproves（prove） useful to his study，though at first he didn't want to buy it because of its high price．分析 这本字典证明对他的学习是有用的，尽管最初因为价格高他不想买．
解答 答案：proves
所给提示词prove在本句中用作连系动词，意为"表明是，证明是"，后常接形容词作表语，to be常常省略，根据though at first he didn't want to buy it because of its high price．"尽管最初因为价格高他不想买．"可知这本字典证明对他的学习是有用的是描述的现在的情况，故用一般现在时，主语The dictionary是第三人称单数，谓语动词用第三人称单数，prove变第三人称单数直接加s，故填proves
点评 本题主要考查完成句子，首先要根据所给单词提示，然后根据句式特点，结合句意和词性，确定单词的适当形式，最后把句子补充完整，本题考查一般现在时
练习册系列答案
相关题目
3．-I think Mr Zhang may be in his office．
--No，he be there．I saw him just now．
（ ）
--No，he be there．I saw him just now．
（ ）
| A． | needn't，left | B． | mustn't，leaving | C． | can't，leave | D． | shouldn't，leave |
4．-There are only ten minutes left．
--It's still _______for us to arrive on time if we hurry up．（ ）
--It's still _______for us to arrive on time if we hurry up．（ ）
| A． | hard | B． | impossible | C． | possible | D． | good |
18．The boy failed the exam because he _____ a lot of time playing the computer games．（ ）
| A． | spent | B． | paid | C． | used | D． | cost |
2．-Are you ____________ Bill？
-No．He is 16，while I am 15．（ ）
-No．He is 16，while I am 15．（ ）
| A． | as strong as | B． | as tall as | C． | as old as |